I've been googling it too lol... I found some sites that talk about how they also kill many animals that are adoptable who knows... but I do feel that 90%+ euthanasia rate seems high, or at least I find it suspicious.

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Dogs don't need to talk, their life is their message ~ unknown.

"The greatness of a nation and its moral progress can be judged by the way its animals are treated." ~ Mahatma Gandhi